window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'UA-24323859-1'); gtag('config', 'G-LW2DL3WSMF');

SALES@QUINSTAR.COM         +1 310.320.1111         

ISO9001:2015 & AS9100D         SUBMIT RFQ          CAREERS



Compact outline, excellent amplitude and phase balance, no DC bias required, use as image reject mixer or single sideband upconverter.

For further information, please contact us at



Specifications and Ordering

Our designs are built onsite and upon request. We tailor each order through our sales engineers to better serve your purchase.


QuinStar builds the QMI I-Q Mixer with I (in phase) and Q (quadrature phase) outputs. We offer QMI over the frequency range of 18 – 110 GHz in eight waveguide bands. These compact mixers integrate two balanced mixers, a 90-degree RF hybrid, and an LO power splitter to achieve excellent amplitude and phase-balanced I-Q outputs.

Using an external IF quadrature hybrid combiner, we can configure these mixers as image-reject mixers or as single-sideband upconverters. QMI achieves good LO to RF isolation over a relatively broad RF and LO frequency ranges. Typical IF range is from DC – 3 GHz. We can also provide models with subharmonic LO (local oscillator at one-half the RF frequency) as custom products. We can customize the I-Q to suit your specific application and outline requirement. Both waveguide and coaxial interfaces are options for RF and LO ports.


Applications for these I-Q mixers include communication equipment, radar sensors, EW/ECM subsystems, and instrumentation receivers.

Ordering Information


Contact us at for ordering information or submit an RFQ.